While this current thread of conversation is not quite theme park related, it does affect all large venues for the foreseeable future.
I am about 90% sure masks are gonna to be required at theme parks for the next 5 to 6 months at least. I say this because I work in the theme park and medical industrys and the trends are positive but not "mission accomplished" state yet.
On the vaccine side of things, I am fortunate and thankful that I am in a line of work that was offered a vaccine very early on. And I can tell you I have many co-workers that given the same chance have passed. And i